Terrorism Act 2000 (Proscribed Organisations) (Amendment) Order 2025

What happened: On 2 July 2025, the House of Commons voted on the Terrorism Act 2000 (Proscribed Organisations) (Amendment) Order 2025, which adds further organisations to the United Kingdom's official list of banned terrorist groups. The motion passed by 385 votes to 26, a substantial majority reflecting broad cross-party support for the measure.

Why it matters: Proscription under the Terrorism Act 2000 makes it a criminal offence to belong to, support, or promote a listed organisation, and gives police and security services enhanced powers to act against its members and financiers. By expanding the list, this order extends those counter-terrorism tools to cover the newly named groups. Anyone found to be a member of, or providing material support to, one of the newly proscribed organisations faces potential prosecution and imprisonment. The practical effect is to increase the legal exposure of individuals connected to these groups operating in or linked to the United Kingdom.

The politics: Support cut across virtually all parties, with Labour, the Conservatives, the Liberal Democrats, Reform UK, and the Democratic Unionist Party all voting in favour or abstaining without opposition. The 26 votes against came primarily from within Labour's own ranks (11 MPs), four Green Party MPs, and a small number of independents and other smaller party representatives. There were no Conservative rebels. The vote sits within a long-running legislative pattern of Parliament periodically updating the proscription list as new threat assessments emerge, and the lopsided result reflects the political difficulty of voting against measures framed in terms of national security.